الوصف
Applications:
H.V HRC current-limiting fuses type W motor protection is mainly
used in AC *0hz.rated voltage 3.***0kv,rated current up to
**0A(3.6KV),**4A(7.2KA) circuit for protecting motor and power
equipment form overload and short-circuit.it can also be sued
withload switch.vacuum contact.
it conforms to IEC****1,IEC**4,BS and GB***6.2
DESIGN FEATURES:
W type H.V HRC current limiting fuses has two installation.
bus-*bar installation and insert installation. it is small in
volume.reliable in connection the power striker parallels to the
fuse element made from pure silver .they are sealed. in the fuse
tube filled with chemically treated high -purity quarta sand.it is
made from heat resistand.high duty ceramic or epoxy glass.when
fault circuit happens the fuse link metlts.the high resistant metal
wire paralleling to fuse link melts immediatedly at the appearamce
of the arc.and the strikerjumps out to push the chained equipment
contact.signaling the melting or automatically cutting the
circuit.W type H.V HRC current limiting fuse has many merits as
high current limiting ability .high breaking capacity.quick and
punctual in action.reliable in performance
Key Specifications/Special Features:
1.motor protection
2.High breaking capability
3.High voltage current limiting fuse
4.Suitable for electrical power system of AC *0Hz, rated voltage
*0kV and below, rated current up to **0A(3.6KV),**4A(7.2KV) circuit
for protecting motor and other power equipment from overload and
short-circuit.
5.High-pressured fuse conforms to the national GB****6.2 standard
and the international electrical committee IEC ****2 standard as
well as German DIN standard and British BS standard.
| model |
Rated
voltage
(KV) |
rated current
of the fuse links
(A) |
Rated breaking
current
(KA) |
dimensions
(mm)¢D |
(See fig.,1)L |
| Foreign |
Department |
|
|
| WDF.O |
XRNM1 |
3.6 |
*0/*3/*0/**0/**5 |
*0 |
*1 |
**4 |
| WFF.O |
XRNM1 |
3.6 |
**5/**0/**0 |
*0 |
*6 |
**4 |
| WKF.O |
XRNM1 |
3.6 |
**0/**5/**5/**0 |
*0 |
*6 |
**4 |
| WFN.O |
XRNM1 |
7.2 |
*5/*1.5/*0/*0/*3/*0/
**0/**5/**0 |
*0 |
*6 |
**3 |
| WKF.O |
XRNM1 |
7.2 |
**0/**4 |
*0 |
*6 |
**3 |
| |
XRNM1 |
*0 |
*5/*1.5/*0/*0/*3/
*0/**0/**5/**0/**0/**4 |
*0 |
*6 |
**0 |
NOTE:under stipulated condition.min breaking current of fuse could
be as high as 2.**3times than rated current.
7.2KV fuse link of **4A or above have a dual tube body
3.6KV fuse link of **0A or above have a
dual tube body
|
DIMENSION OF MOTOR PROTECTION FUSE TYPE w FOR BUSBAR INSTALLATION(MM) |
| MODEL |
DIMENSIONS |
| A |
B |
C |
G |
E |
F |
| WFF.O |
**0 |
**2 |
**0 |
**0 |
**6 |
**9 |
| WKF.O |
**0 |
**2 |
**0 |
**0 |
**6 |
**9 |
| WFN.O |
**0 |
**1 |
**0 |
**0 |
**6 |
**9 |
| WKN.O |
**0 |
**1 |
**0 |
**0 |
**6 |
**9 |
| XRNM1 |
**0 |
**9 |
**0 |
**0 |
**6 |
**5 |
SELECTION FOR W TYPE MOTOR CURRENT LIMITING FUSE
When started with full voltage.rated current≈twice of loade motor
current.when started under other circumstances.rated
current≈1.5times of loaded motor current for directly started
motor.fuses of proper rated current should be selected according to
the following formula.
ly=N.1n¢
ly:Starting current
N:Ration of starting current and loaded current.usually N≈6
1n:Loaded motor current
¢:comprehensive coefficient.see the table below:
|
¢comprehensive coefficient |
| start time |
2 |
4 |
8 |
*6 |
| ¢ |
1.7 |
1.9 |
2.1 |
2.3 |
Rear to time current characteristic diagram for selection of proper
H.V.fuse link.rated current of fuse link should be 1.3 times than
loaded motor current.
| بلد: |
China |
| نموذج رقم: |
XRNmi-3.6KV/7.2kv/10kv
|
| سعر فوب: |
(قابل للتفاوض)
أحصل على آخر سعر
|
| الموقع: |
china |
| سعر الحد الأدنى للطلب: |
- |
| الحد الأدني للطلب: |
- |
| تفاصيل التغليف: |
- |
| موعد التسليم: |
- |
| القدرة على التوريد: |
- |
| نوع الدفع: |
T/T, L/C, D/A, D/P, Western Union, Money Gram, PayPal |
| مجموعة المنتج : |
- |
